Jaw temple for looms



Sept. 16, 1930. c, DRAPER I 1,776,230

I JAW TEIPLE FOR LOOKS Filed July 17, 1929 2 Sheets-Shoot 1 I \nvenlor. Ckne H. Dropr b mwym Sept. 16, 1930; c. H. DRAPER JAW TEIPLE FOR LOUIS Filed July 17, 1929 2 Shoots-Shoot. 2

lnvenfor. Clare H. Draper M iya Patented Sept. 16, 1930 UNITED STATES CLARE H. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO TION, OF HOPEDLALE, MASSACHUSETTS, .A. CORPORATION PATENTO DRAPER oonroim or MAINE JAW TEMPLE FOR LOOMS Application filed M 17, 1929. Serial 1%. 378,937;

This invention relates to that type of temf mediately gripped again as the lay retracts thus to hold the cloth While being woven up to the required width.

The object of the invention is to provide a construction of such temple in whichthe cloth shall be firmly and positively gripped without injury thereto. j

The object of the invention is further to provide the jaws of the temple, the one with pointed pins projecting therefrom and the other with apertures to receive the pins so arranged that'the pins shall pass transversely through the cloth and the pull exerted by the r cloth shall be at right angles to the pins.

The object of the invention is further to provide such a construction of temple in which the cloth is firmly gripped by the pins and in which there is no danger of the cloth being marked or injured by the pins as the cloth passes through the temple.

The object of the invention is further to provide a construction in which the cooperating pins and apertures may readily be replaced, thus enabling different sizes and dispositions of the pins to be provided in the 80 same temple in accordance with'the weaving requirements,

The object of the invention is further to provide a simple and efiicientmeans for opening and closing the jaws of the temple.

These and other objects and features of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims. j 7

As the general purpose, construction and operation of loom temples and of the jaw type of loom temples are well known and familiar to those skilled in the art, it will only be necessary here to illustrate and describe those features withwhich the present invention is particularly concerned.

One of a pair of temples is illustrated and it will be understood that the other is of similaw but opposite construction.

In" the drawings 5 Fig. 1 isaside elevation of atemple em bodymg a preferred form of'the invention with the jaws shown in closed position.

=13 ig. 2 is a similar view, together with the lay in position at the conclusion of theb'eaa up and with the jaws in open position.

Fig. 3 is a top plan view oftheconstruc tion shown in Fig. 1.

Fig. 4 is a viewin side elevation looking at the opposite side of the temple shown in Fig.1.. I"

Fig. 5- is a front elevation of the temple with" arpo-rti-on thereof broken away.

Fig. 6 is a detail in cross section of'a portion of the temple jaws in open position with the cloth in position between them.

The temple,in the preferred form shown, comprises a shank l mounted to slide in a stand Qsec'ured to the breast beam. The shank 1 is providedwith a depending heel3 by which it is given a slight forward movement upon the conclusion of the beat-up of the lay 4. A spring, not'illustrated, in the stand 2 projects the shankto rearward position.

Thetemple jaws are vertically separable and inthe preferred construction shown, this is secured by making the lower jaw fixed and providing for the vertical swinging move ment of the upper jaw toward and from the lower jaw. As illustrated,thelower jaw 5 is formed integral with the shank and projects laterally therefrom presentingan extended flat face over which the cloth 6 passes. The upper jaw 7 presents an opposed cooperating fiat face of similar dimensions to that of the lower jaw and is formed integrally with an arm 8 by means of which it is hingedto the temple shank. For that purpose the temple shank is provided with an extended bearin 9 in whichis journalled a shaft 10; The arm 8' is secured t'o'the shaft 10 by being clamped against a shoulder on theshaft by a nut 11 threaded onto the shaft. The upper jaw is moved or swung to closed or' clamping position, in the form illustrated, by a coiled spring 12 seated between a projection- 13 from the shank and a projection 14: from the jaw, studs 15- being provided on crumed onia stud 17 secured in the shank 1.

and is held thereon by a cotter pin 18. The upper end of the lever is cam-shaped, presenting a flat surface. 19 underlying the lower edge of the arm 8 when thejaw's are'closed" and an eccentric shoulder 20 whichcams the arm 8 upward when the lever is swung forward. The lower end of this lever is formed into a depending heel 21 which stands well rearward of the heel 3 when the jaws are closedand which, when engaged by the lay upon the conclusionof the beat-up, moves forward, rocking the lever about its fulcrum l7 and thus camming the upper jaw into open position, as shown in Fig. 2. I 7

Upon the retraction of the lay, the upper jaw pressed by the spring 12 against this eccentric shoulder 20 returns the lever 21 to normal position as the upper jaw closes upon the lower jaw. I The face of one of the cooperating jaws of the temple is studded with pointed pins 22 projecting therefrom and the face of the other jaw is studded with corresponding apertures 23 to receive the pins. These pins and apertures are preferably arranged in a plurality of staggered rows. When the jaws are open,-the cloth may pass freely between the jaws, the pins standing well clear of the cloth, as shown in Fig. 7 6. \Vhen the jaws are closed, the pins pass through the cloth into theeapertures and thus extend transversely through the cloth holding it with'a firm grip. Since the pins are therefore either entirely clear of the cloth or firmly seated in the cloth, and since at each beat-up the pins take a fresh grip on the cloth and do not track, and since the points of the pins are not dragged over, the cloth, there is no danger of injury to the cloth. g

The pins and apertures are preferably respectively secured and formed in removable inserts, shown as plates 24 and 25, of wood or similar material set into the face ofthe respective, jaws and held in placeby screws 26. This enables any desired size, number or position of the pins and corresponding apertures to be employed and any change in these factors to be made according to the requirements of the cloth by removing the inserts and replacing them with inserts having the required size and disposition of pins and apertures.

While, so far as the broader aspects of the invention are concerned, the vertical separawill be necessary to free the cloth, and that" the pins be provided in the. upper. jaw which move away from the lower jaw so that the pins are readily freed from the cloth at the conclusion of each beat-up of the lay.

q'Th'ere' is'thus presented a very simple and efficient form of jaw. temple by means of which the cloth is firm y gripped and held without injury thereto and which the operation of the opening and closing movement is readily efiected and 1n whlch the gripplng pin construction provided may readily changed in accordance with the requirements of the cloth. I I

V The operation of the temple will be apparent. The parts, during the, main portion of thecycle of operation of the 100111, stand as shown in Figs. 1, 1- and. 5, withthe cloth 6 firmly held and gripped by the jaws and the pins projecting transversely through the cloth into the apertures. As the lay 4 concludes the beat-up, it swingsthe heel 21 from the position shown in Fig.1. to that shown in Fig. 2, quickly effecting the separation of the jaws andfreeing the cloth, as shown in Fig. 6, so that the cloth may pass freely between the jaws to anew a fresh grip to be taken; Immediately the lay'retracts, the spring 12 restores the jaws to closed gripping position. The cam lever 16 in the preferred construction is. further provided with a flat face 2'? forward of the shoulder 20 so shaped that by swinging this lever to an extreme forward position, this face will come'against the lower edge of the arm 8 and hold the upper jaw in raised position. This enables the operator to lock the temple jaws in separated position whenever it is desired to manipulate the cloth by hand with respect to the temples.

' There is also shown 'in-connection with the temple illustrated a filling-severing or threadcutting' mechanism of a novel and simple form, but which forms no part of the present invention. This mechanism is shown asineluding alower fixed shear blade28 secured to the outer face of the lower jaw and held in position by the stud 17 and a screw 29 so that its cutting edge 30 stands flush with the upper face of the lower jaw. A cooperating cutter blade 31 is set into a groove in the upper jaw 7 and held in place by a screw 32. The shearing edge of this blade is inclined downward and forward so that any filling end extending between the blades when the jaws are in open position is severed as the jaws move to closed position. The shearing blade 31 is held snugly up against the blade 28 by a spring 33 mounted on the shaft between the bearing 9 and the head 34 of the shaft.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A loom temple comprising a shank, a

7 lower fixed jaw on the shank presenting an lng, when moved by the lay on extended fiat face over which the cloth passes, an upper jaw hinged to the shank presenting a face cooperating with that of the lower jaw, a spring mounted between the shank and the upper jaw acting to swing the upper jaw to closed position, and a cam lever fulcrumed on the shank having an eccentric shoulder on its cam face engaging the upper jaw and having a heel in the path of the lay and acting when moved by the lay on the conclusion of the beat-up to cam the upper jaw to open position and release the cloth, the upper jaw when swung by the spring to closed position acting upon the eccentric shoulder of the lever to return the lever to normal position.

2. A loom temple comprising a shank, a lower fixed jaw on the shank presenting an extended flat face over which the cloth passes, an upper jaw hinged to the shank presenting a face cooperating with that of the lower jaw, a spring mounted between the shank and the upper jaw acting to swing the upper jaw to closed position, and a cam lever fulcrumed on the shank, engaging the upper jaw, having a heel in the path of the lay, actthe conclusion of the beat-up, to swing the upper jaw to open position and release the cloth, and having a face acting to hold the upper jaw in open position when swung to an extreme forward position.

In testimony whereof, I have signed my name to this specification.

CLARE I-I. DRAPER. 

